InstCombine: Use isAllOnesValue() instead of explicit -1.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188563 91177308-0d34-0410-b5e6-96231b3b80d8
FileCheck: Fix stray quote in CHECK-LABEL error message.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188564 91177308-0d34-0410-b5e6-96231b3b80d8
Removing unused functionality.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188565 91177308-0d34-0410-b5e6-96231b3b80d8
Switching to using a helper function instead of manually converting the string to UTF-8.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188566 91177308-0d34-0410-b5e6-96231b3b80d8